[go: up one dir, main page]

SE7507869L - PROTECTIVE DEVICE FOR SERIES CAPACITORS - Google Patents

PROTECTIVE DEVICE FOR SERIES CAPACITORS

Info

Publication number
SE7507869L
SE7507869L SE7507869A SE7507869A SE7507869L SE 7507869 L SE7507869 L SE 7507869L SE 7507869 A SE7507869 A SE 7507869A SE 7507869 A SE7507869 A SE 7507869A SE 7507869 L SE7507869 L SE 7507869L
Authority
SE
Sweden
Prior art keywords
overvoltage
series capacitors
capacitor
control apparatus
central control
Prior art date
Application number
SE7507869A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE410543B (en
Inventor
Y Ishida
H Kuwahara
Original Assignee
Mitsubishi Electric Corp
Tokyo Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Tokyo Electric Power Co filed Critical Mitsubishi Electric Corp
Publication of SE7507869L publication Critical patent/SE7507869L/en
Publication of SE410543B publication Critical patent/SE410543B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/16—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

An overvoltage across each of N series capacitors is sensed by an individual overvoltage sensor through an associated current transformer and applied to a central control apparatus. Each capacitor is connected across an electric valve with a trigger electrode and also across a normally open circuit breaker. Another current transformer includes a secondary winding connected to the trigger valve electrode and a primary winding connected across a discharge circuit controlled by the central control apparatus. With an overvoltage developed across any capacitor, the discharge circuit discharges the electric valve and then closes the circuit breaker.
SE7507869A 1974-07-10 1975-07-09 PROTECTIVE DEVICE FOR SERIES CAPACITOR SE410543B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49079372A JPS5942536B2 (en) 1974-07-10 1974-07-10 Series capacitor protection device

Publications (2)

Publication Number Publication Date
SE7507869L true SE7507869L (en) 1976-01-12
SE410543B SE410543B (en) 1979-10-15

Family

ID=13688029

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7507869A SE410543B (en) 1974-07-10 1975-07-09 PROTECTIVE DEVICE FOR SERIES CAPACITOR

Country Status (5)

Country Link
US (1) US4012667A (en)
JP (1) JPS5942536B2 (en)
CA (1) CA1058281A (en)
DE (1) DE2530910C3 (en)
SE (1) SE410543B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121270A (en) * 1977-02-09 1978-10-17 Westinghouse Electric Corp. Series capacitor system with force firing of protective bypass device
US4259704A (en) * 1979-04-20 1981-03-31 General Electric Company Protective circuit for zinc oxide varistors
US4572991A (en) * 1984-01-16 1986-02-25 General Electric Company Higher efficiency incandescent lighting unit having an improved ballast unit
FR2631156B1 (en) * 1988-05-06 1994-07-22 Signaux Equip Electroniques CAPACITIVE TYPE ELECTRIC ENERGY ACCUMULATOR, LARGE CAPACITY
US4926280A (en) * 1989-11-06 1990-05-15 Ncr Corporation Capacitor protection circuit for protecting storage capacitors in an electronic power supply
JPH07182052A (en) * 1993-12-21 1995-07-21 Zexel Corp Overvoltage protection device
US5789964A (en) * 1997-02-14 1998-08-04 International Business Machines Corporation Decoupling capacitor network for off-state operation
US6397158B1 (en) * 1999-04-29 2002-05-28 Sun Microsystems, Inc. Method for determining capacitance values for quieting noisy power conductors
SE530248C2 (en) * 2006-08-25 2008-04-08 Powerwave Technologies Sweden Active lightning protection
DE102016218599A1 (en) * 2016-09-27 2018-03-29 Robert Bosch Gmbh Power converter, electric drive system and method for charging an electrical energy storage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2207577A (en) * 1937-10-16 1940-07-09 Gen Electric Electric protective system
US2664525A (en) * 1950-02-16 1953-12-29 Ite Circuit Breaker Ltd Series capacitor protection
US3619721A (en) * 1970-06-01 1971-11-09 Gen Electric Triggered vacuum gap keep-alive circuit
US3816800A (en) * 1973-03-01 1974-06-11 Westinghouse Electric Corp Protective system for series capacitors

Also Published As

Publication number Publication date
JPS518543A (en) 1976-01-23
CA1058281A (en) 1979-07-10
SE410543B (en) 1979-10-15
DE2530910C3 (en) 1980-03-13
DE2530910B2 (en) 1979-07-19
JPS5942536B2 (en) 1984-10-16
US4012667A (en) 1977-03-15
DE2530910A1 (en) 1976-02-26

Similar Documents

Publication Publication Date Title
SE441139B (en) DEVICE FOR MONITORING OF AN ELECTRICAL PARAMETER ALLOCATED TO A COMMUNITY VOLTAGE, WHICH DEVICE GENERATES AN ANALOG SIGNAL INDEPENDENT OF THESE COMMUNITY VOLTAGE AND PRESENTS THE ELECTRICAL PARAMETER
SE7507869L (en) PROTECTIVE DEVICE FOR SERIES CAPACITORS
CH470089A (en) Device for short-circuiting the secondary circuit of a current transformer
SE8502364D0 (en) SERIES CONDENSATOR BATTERY PROTECTOR
SE8002835L (en) Zinc Oxide Varistors Protection Circuit
SE7711515L (en) CONDENSER EQUIPMENT
FR2382703A1 (en) Electrical machine earth fault current detector - uses electroluminescent diode and thyristor controlled capacitor charge discharge circuit
FR2386175A1 (en) Line overvoltage protection for electrical device - has symmetrical variable resistors coupled to isolating transformer secondary
GB841181A (en) Improvements in and relating to protective circuit-breakers
SU530369A1 (en) Voltage relay
SU100621A1 (en) Relay device
GB854172A (en) Improvements in or relating to electric arc-welding installations
JPS5510051A (en) Plasma ignition device
SU779587A1 (en) Device for testing transformer-including circuits for spark safety
JPS5438541A (en) Protective device for current transformer
GB905939A (en) Improvements in or relating to alternating voltage generators
GB1181523A (en) Improvements in and relating to Electric Pulse Apparatus.
JPS532971A (en) Strobo control circuit
GB1321310A (en) Electrotherapy apparatus
FR2387591A1 (en) Electric fence control circuit - has transformer primary supply controlled by transistor circuit with capacitor charged through resistors
JPS5290031A (en) Regulator transformer impact voltage protector
KR830000813A (en) Ignition and flame detection device for burner combustion control system
GB549835A (en) Safety circuit for cathode ray tubes
JPS5261726A (en) Potential current transformer
ES424128A1 (en) Improvements in electronic systems for the ignition of appliances that work with gas. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7507869-1

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 7507869-1

Format of ref document f/p: F